Nga paipa rino kua tohia te makaririTe whakaroa me te whakaiti i te waahi

Ko te tuhi makariri he rauemi tukanga, mo te mea whakarewa, e tohu ana ki te tuhi kia tutuki ai tetahi ahua me etahi ahuatanga miihini, kei raro i nga tikanga pāmahana rūma te rauemi mo te tuhi.Ko nga hua matao kua tohua ki te whakamaaramatanga: te tika o te taha teitei me te pai o te whakaoti mata.

Te tuhi paipa maitai diameter nui Whakaroa (σ), i roto i te whakamatautau tensile, Ko te roa o te tauira i muri i te mahanga i tona awhe i piki ake hei paheketanga o te roa ine taketake e kiia nei ko te elongation.Meσ kua whakaaturia ki nga waeine o %.Ko te tauira: kei hea : L1 – tauira whawhati ine te roa, mm;L0 – te roa o te ine tauira taketake, mm.

Te tuhi i te waahanga paipa diameter nui te whakaheke (ψ) i roto i te whakamatautau tensile, ko te tauira te hekenga paheketanga nui rawa atu i te rahinga o te waahi whiti taketake o tona rohe whitinga i te kumea kaki, e kiia ana ko te whakahekenga waahanga.Kiψ kua whakaaturia ki nga waeine o %.Ka tatauhia penei: kei hea: S0 – te waahi whitinga tauira taketake, mm2;S1 – tauira whawhati kaki i te iti rawa o te waahanga whiti, mm2.

Ko te tauira whakamatautau ki roto i te kaki o te tukanga whakarereke kirihou.Na te whakaroatanga o te tauira i whakaatu i te rahinga whiti i te taha o te wahanga kaki o te tauira ka piki haere tonu, tae noa ki te ahua o te tauira katoa.Ko te tino paheketanga o te kaki i puta i te wahanga o te ahotea.A, no te te pāmahana tuhi o te whakarewa i ngā i roto i te tuhi i raro i te pāmahana recrystallization o te tuhi, i roto i te tuhi i runga ake i te pāmahana recrystallization he wera tuhi i te pāmahana teitei ake i te pāmahana rūma i raro i te pāmahana recrystallization o te kume tuhi.Te tuhi waea whakarewa, te hanga waea te tuhi i te huarahi tino noa.Waariki toia te waea ki te kia wera i mua i te tomo ki te orifice mate, te nuinga whakamahia te whakarewa refractory mo te tuhi, pērā i Tungsten, molybdenum me ētahi atu waea whakarewa.A, no te te pāmahana wahia te waea me anake kia unu ki te poka mate e te whakamahana ki te awhe pāmahana i tohua, te nuinga mo te waea konutea, he uaua ki te deformation te waea pērā i te tira tere tiketike, mau maitai tuhi.